Procurement of Wide Area Multilateration and Automatic Dependent Surveillance Broadcast Systems — ICAO

Wide Area Multilateration and Automatic Dependent Surveillance Broadcast Systems ICAO Wide Area Multilateration and Automatic Dependent Surveillance Broadcast Systems Invitation to bid Reference: ICAO-00044,2 Beneficiary countries or territories: Angola Registration level: Basic Published on: 11-Oct-2025 Deadline on: 15-Apr-2026 16:28 (GMT -4.00) Description Dear Sir/Madam,The International Civil Aviation Organization (ICAO), a specialized Agency of the United Nations, hereinafter referred to as ICAO, hereby invites prospective bidders to submit a bid in accordance with the General Terms and Conditions of Contract and the Schedule of Requirements as set out in this Invitation to Bid (ITB).For Existing Suppliers in Quantum:Please log in to the Quantum Supplier Portal to access the ITB documents.

Do not create a new profile if you already have one. If you have forgotten your password or username, use the “Forgotten Password” feature to retrieve your credentials.For New Suppliers in Quantum:If you are viewing this notice on UNGM, navigate to the "Links" tab, select "Supplier Registration", then click “Go to link” to be redirected to the